| 外源油菜素甾酮处理水稻对褐飞虱取食和产卵选择性等行为的影响 |
| 点此下载全文 |
| 引用本文：王佳妮,丁波英,王璐,王喆,周国鑫,娄永根.外源油菜素甾酮处理水稻对褐飞虱取食和产卵选择性等行为的影响.植物保护学报,2018,45(5):998-1004 |
| DOI：10.13802/j.cnki.zwbhxb.2018.2018930 |
| 摘要点击次数: |
| 全文下载次数: |
|
|
| 中文摘要:为了解经油菜素甾酮处理后水稻对褐飞虱Nilaparvata lugens的抗性，通过在水稻培养液中添加不同浓度的油菜素甾酮，观察水稻对褐飞虱取食和产卵、若虫生长发育、羽化等行为的影响，评估油菜素甾酮在水稻抗虫防御反应中的作用。结果表明，水稻培养液中的油菜素甾酮可被水稻有效吸收并产生生理活性。经0.01~10 μmol/L油菜素甾酮处理后水稻叶片弯曲程度均显著增加，其叶角分别为对照的3.3~11.0倍。褐飞虱取食和产卵嗜好性与油菜素甾酮处理浓度密切相关，经较低浓度0.005~0.05 μmol/L油菜素甾酮处理的水稻能显著降低褐飞虱雌成虫的取食和产卵嗜好性，其产卵量为对照的35.0%~73.9%；而较高浓度0.1~5 μmol/L油菜素甾酮处理则增加褐飞虱雌成虫的取食和产卵嗜好性，其产卵量为对照的1.3~1.8倍。0.01、1、5、10 μmol/L油菜素甾酮处理的水稻显著降低褐飞虱若虫的羽化率，为对照的32.5%~53.3%。0.1~10 μmol/L油菜素甾酮处理显著缩短褐飞虱若虫发育历期，仅为对照的94.1%~96.9%。褐飞虱若虫存活数和初羽化雌成虫体重分别仅在0.1、10 μmol/L油菜素甾酮处理下显著降低。表明油菜素甾酮处理水稻可对水稻抗虫防御反应产生影响，其具有作为生态功能分子用于褐飞虱田间防控的潜力。 |
| 中文关键词:水稻 褐飞虱 油菜素甾酮 生态功能分子 抗虫性 |
| |
| The effects of exogenous castasterone treatment on rice brown planthopper Nilaparvata lugens behaviors, with special reference to feeding and ovipositing preferences |
| Author Name | Affiliation | E-mail | | Wang Jiani | College of Agricultural and Food Sciences, Zhejiang A & F University, Hangzhou 311300, Zhejiang Province, China | | | Ding Boying | College of Agricultural and Food Sciences, Zhejiang A & F University, Hangzhou 311300, Zhejiang Province, China | | | Wang Lu | College of Agricultural and Food Sciences, Zhejiang A & F University, Hangzhou 311300, Zhejiang Province, China | | | Wang Zhe | College of Agricultural and Food Sciences, Zhejiang A & F University, Hangzhou 311300, Zhejiang Province, China | | | Zhou Guoxin | College of Agricultural and Food Sciences, Zhejiang A & F University, Hangzhou 311300, Zhejiang Province, China | gxzhou@zafu.edu.cn | | Lou Yonggen | The Institute of Insect Science, Zhejiang University, Hangzhou 310058, Zhejiang Province, China | yglou@zju.edu.cn |
|
|
| Abstract:To determine the effects of castasterone (CS) on the rice resistance against rice brown planthopper (BPH), Nilaparvata lugens (Stål), behaviors such as feeding and oviposition preferences, developmental duration and emergence rates of nymphs, BPHs fed on rice plants grown in culture solution with different concentrations of CS were observed. The results showed that CS could be absorbed from culture solution and induce physiological activity in rice, as CS-treated rice leaf angles were bigger than those of the control; 0.01-10 μmol/L CS-treated rice leaf angles were 3.3-11.0 times of the control. The effects of CS on the feeding and oviposition preferences of female BPH adults were dependent on the concentration of CS, and BPH did not prefer to feed and oviposit on low-concentration CS-treated rice plants:the eggs on 0.005-0.05 μmol/L CS-treated rice plants were 35.0%-73.9% of those on the control. Moreover, BPHs preferred to feed and oviposit on higher-concentration CS-treated rice plants:the eggs on 0.1-5 μmol/L CS-treated rice plants were 1.3-1.8 times of those on the control, and the emergence rates of BPH nymphs fed on 0.01, 1, 5, 10 μmol/L CS-treated rice plants were only 32.5%-53.3% of that of the control, all of which were significantly reduced compare to the control; the developmental durations of BPH nymphs fed on 0.1-10 μmol/L CS-treated rice plants were significantly decreased, about 94.1%-96.9% of that of the control; the nymphal numbers of BPH survived fed on 0.1 μmol/L CS-treated rice plants and the weight of freshly emerged female adults on 10 μmol/L CS-treated rice plants were significantly reduced compared to those of the control. The results indicated that castasterone could regulate rice defense responses against herbivores, which could be used for BPH population control in the field as an ecological functional molecule. |
| keywords:rice Nilaparvata lugens (Stål) castasterone ecological functional molecule insect resistance |
| 查看全文 查看/发表评论 下载PDF阅读器 |
|
|
|
|
您是本站第 14551377 版权所有：植物保护学报 京ICP备05006550号-2 主管单位：中国科协 主办单位：中国植物保护学会、中国农业大学 地址：北京市圆明园西路2号 中国农业大学植物保护学院 植物保护学报编辑部 电话：010-62732528 电子邮件：zbxb@cau.edu.cn 技术支持： 北京勤云科技发展有限公司 |
